Home / 2,769.24-3,821.31-1,574.31

Finding the Fourth Proportional to 2,769.24, 3,821.31 and 1,574.31

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Solution

The fourth proportional to 2,769.24, 3,821.31 and 1,574.31 is: 2,172.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,769.24 : 3,821.31 = 1,574.31 : x
  2. Step 2: Convert to fraction form
    2,769.24/3,821.31 = 1,574.31/x
  3. Step 3: Cross multiply
    2,769.24x = 3,821.31 × 1,574.31
  4. Step 4: Simplify right side
    2,769.24x = 6,015,926.55
  5. Step 5: Solve for x
    x = 6,015,926.55/2,769.24
  6. Step 6: Final answer
    x = 2,172.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.